These single flow tube variable area flowmeters are designed for precise low flow rate measurements of air and water in mL/minute at a given set of pressure and temperature parameters. The Optigrad™ 150 mm universal millimeter scale minimizes parallax and eye fatigue. Ideal for metering carrier gases in chromatography, indicating and controlling gases in manufacturing processes, liquid and gas measurement in laboratories, and pilot plants.

The flow meters include standard mounting fittings, side plates, thick protective magnifying front shield and back plate, and stable flow tubes for accurate readings.

Warning: This product is not approved or intended for, and should not be used for, medical, clinical, surgical or other patient-oriented applications.